SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/aero-neptune-long-year

About how long is one year on Neptune?

About 165 Earth years.

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  1. About 84 Earth years
  2. About 165 Earth years ✔
  3. About 12 Earth years

Why: Neptune travels around the Sun at a tremendous distance. Completing one orbit takes about 165 Earth years.

Huh, didn't know that: Neptune finished its first full orbit since discovery in 2011.

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Neptune buys calendars in very large packs.
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References

Answer: About 165 Earth years. Neptune travels around the Sun at a tremendous distance. Completing one orbit takes about 165 Earth years.

  1. Neptune Facts science.nasa.gov/neptune/neptune-facts
    Neptune makes a complete orbit around the Sun in about 165 Earth years
    Checked 2026-10-10.

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